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Questions Asked on March 1, 2013

If acetic acid is the only acid that vinegar contains [Ka = 1.8*10-5] , calculate the concentration of acetic acid in the
1. 6 answers
2. asked by Jonah
3. 9,288 views
Scientists report (1) THAT CREATURES LIVING IN THE DEEP SEA ARE IN DANGER OF STARVING TO DEATH. Millions of undiscovered species
1. 4 answers
2. asked by Danii
3. 8,277 views
A pizza was cut into 6 slices. Ben ate 1/3 of the pizza. How many slices did he eat?
1. 3 answers
2. asked by Lexi
3. 6,074 views
The sum of the digits of a certain two-digit number is 7. Reversing its digits increase the number by 9. What is the number. Use
1. 3 answers
2. asked by Anonymous
3. 5,483 views
A sample of propane C3H8 contains 13.5 moles of carbon atoms how many total moles of atoms does the sample contain?
1. 2 answers
2. asked by Marcus
3. 5,195 views
how many grams of dioxygen are required to burn 5.9 grams of C2H5OH?
1. 2 answers
2. asked by Anonymous
3. 4,867 views
If sin theta is equal to 5/13 and theta is an angle in quadrant II find the value of cos theta, sec theta, tan theta, csc theta,
1. 2 answers
2. asked by Julise Alliance
3. 4,525 views
Click on the box to choose whether each sentence restates the key idea expressed in the key sentence.Key Idea: When hot weather
1. 2 answers
2. asked by ty
3. 4,190 views
0.15g of hydrogen chloride HCl is dissolved in water to make 8.0L of solution. What is the pH of the resulting hydrochloric acid
1. 1 answer
2. asked by Jonah
3. 3,772 views
Which statements are correct for an endothermic reaction?I. The system absorbs heat. II. The enthalpy change is positive. III.
1. 3 answers
2. asked by chirikamo
3. 3,726 views
Solve the formula for the variable given.P = r-c/n solve for c. (business) I have worked this problem so many times I'm getting
1. 2 answers
2. asked by sally
3. 3,505 views
You need 2 cups of orange juice to make 3 quarts of punch.How many cup of orange juice do you need to amke 3 gallons of punch?
1. 17 answers
2. asked by janiece
3. 3,155 views
What is the value of n so that the expression x² + 11x + n is a perfect square trinomial?A.11 B.25 C.30.25 D.36 I think it is
1. 4 answers
2. asked by Cassie
3. 2,856 views
Radium-223 has a half-life of 11.4 days.Approximately how long would it take for the activity of a sample of Radium-223 to
1. 2 answers
2. asked by Michelle
3. 2,776 views
an ant walks 30 feet in 6 minutes. how long will it take the ant to walk 35 yards?
1. 6 answers
2. asked by janiece
3. 2,762 views
if you paid $120 to a loan company for the use of $2000 for 90 days, what annual rate of interest did they charge?
1. 2 answers
2. asked by Tiffany
3. 2,750 views
Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth.A.x = –0.24 B.x =
1. 9 answers
2. asked by Cassie
3. 2,649 views
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth.ab=4ft bc=6ft
1. 2 answers
2. asked by sally
3. 2,643 views
Underline the stem extenders in the following words:Philosophy Somnipathy Metaphor Induction Hypnotic Anthropology Pneumectomy
1. 4 answers
2. asked by Baaba
3. 2,543 views
There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors,
1. 3 answers
2. asked by Michelle
3. 2,530 views
Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire.The
1. 4 answers
2. asked by Unknown
3. 2,489 views
3/7 of the people who live in an apartment building are men. 5/8 of the remaining people are women. The rest are children. A
1. 3 answers
2. asked by Anonymous
3. 2,439 views
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. The temperature of the gaseous
1. 3 answers
2. asked by marcie
3. 2,431 views
Which ofI) HCl II) HF III) LiOH IV) HClO2 V) HNO3 are strong acids or strong bases in water?
1. 4 answers
2. asked by cheri
3. 2,405 views
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth.
1. 1 answer
2. asked by sally
3. 2,400 views
A rectangle has a length of 6x^3 y^2 - 1 and a width of 3xy + 2. The formula for the perimeter of a rectangle is P=2l + 2w,
1. 3 answers
2. asked by Jane
3. 2,348 views
how many grams of oxygen gas will be required to react completely with 92.0 grams of solid sodium to form solid sodium oxide?
1. 2 answers
2. asked by Tamra
3. 2,346 views
11.Absurdism is the attempt to show the absurdity of the human condition. • true<--- my anwser • false
1. 3 answers
2. asked by Danii
3. 2,342 views
Suppose you are opening a 1,000-square-foot baseball card store. Your lease calls for a flat monthly rent of $1.75 per square
1. 3 answers
2. asked by jing
3. 2,308 views
A rectanglar blacktop with a length of 5x and a width of 3x has been erected inside a rectangular field that has a length of 12x
1. 3 answers
2. asked by Jane
3. 2,282 views
Becky used 5 teaspoons of mustard to make a 32 ounces of potato salad. How many teaspoons of mustard does she she need to make 4
1. 15 answers
2. asked by janiece
3. 2,253 views
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7
1. 2 answers
2. asked by Jane Brown
3. 2,069 views
X= log base 3 1/27
1. 2 answers
2. asked by George
3. 2,002 views
George finds a company that charges 59 cnets per day for each 1000 borrowed. if he borrows 3000 for 60 days, what amount will he
1. 2 answers
2. asked by Tiffany
3. 1,940 views
exercise 5.8write an informal proof of Premises: LeftOf(a,b) | RightOf(a,b) BackOf(a,b) | ~Leftof(a,b) FrontOf(b,a) |
1. 2 answers
2. asked by Ashley
3. 1,877 views
A treaty was signed in 1842 to end the border dispute between the United States and Britain in Maine. Which best expresses the
1. 2 answers
2. asked by Max
3. 1,698 views
a road that runs perpendicular to a highway leads to a farmhouse located one mile off the highway an automobile travels down the
1. 2 answers
2. asked by diego
3. 1,671 views
Which compound would you expect to have the highest melting point?BeO MgO CaO SrO
1. 2 answers
2. asked by s
3. 1,634 views
Which answer best describes the main purpose of Monroe Doctrine?to claim new United States territories in the West to warn
1. 6 answers
2. asked by Max
3. 1,591 views
Acid rain has a pH value of 3.0, whereasnormal rain has a pH value of 5.6. Calculate the ratio of the hydronium ion in acid rain
1. 2 answers
2. asked by cheri
3. 1,578 views
An investor purchases 75 shares at 37.90 a share, holds the stock for 150 days, and then sells the stock for 41.20 a share. Find
1. 2 answers
2. asked by Tiffany
3. 1,571 views
ok so i keep getting one wrong on a 4 question test and failing so can someone tell me what im getting wrong1. What causes an
1. 5 answers
2. asked by s
3. 1,531 views
A current of 4.00 A flows through the heating element of heater converting 500 J of electrical energy into thermal energy every
1. 1 answer
2. asked by John
3. 1,513 views
Let R be the region in the first quadrant bounded by the graph y=3-√x the horizontal line y=1, and the y-axis as shown in the
1. 3 answers
2. asked by Jess
3. 1,513 views
Two vectors have magnitudes of 3 units and 8 units respectively. The resultant of these two vectors has a magnitude of 8 units.
1. 1 answer
2. asked by dave
3. 1,362 views
Flying to Kampala with a tailwind a plane average 158km/h. On the return trip the plane only averaged 112km/h while flying back
1. 2 answers
2. asked by Anonymous
3. 1,348 views
Which set of side lengths shows similar triangles?Triangle ABC : 40, 20, 50; Triangle XYZ: 10, 12.5, 10 Triangle ABC : 30, 20,
1. 2 answers
2. asked by Morgan
3. 1,329 views
For some positive real number r , the line x+y=r is tangent to the circle x^2+y^2 = r. Find r.How do we do this? Set equal
1. 4 answers
2. asked by Knights
3. 1,327 views
information ob taxation without representation on sugar act, stamp act, and Townsend act(townshed act)
1. 1 answer
2. asked by Anonymous
3. 1,321 views
Find the derivative of the function f by using the rules of differentiation.f(u)=10/�ãu f '(u) = ??
1. 1 answer
2. asked by Ashton
3. 1,304 views
Assume the body temperature of healthy adults are normally distributed with a mean of 98.20 degrees F (based on data from the
1. 1 answer
2. asked by Jane Brown
3. 1,301 views
Which type of emission closely traces the star-forming regions of a galaxy?- molecular CO emission - coronal X-ray emission - 21
1. 0 answers
2. asked by qwerty
3. 1,299 views
A building casts a shadow 54 feet long at the same time a 6 foot tall man casts a shadow 4 feet long. How tall is the tree?
1. 3 answers
2. asked by Sara
3. 1,269 views
There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20x.
1. 1 answer
2. asked by Jane
3. 1,263 views
3 MgCl2(aq) + 2 Na3PO4(aq) ==> Mg3(PO4)2(s) + 6 NaCl(aq)How many milliliters of 0.0800 M Na3PO4(aq) will react with 0.060 mol of
1. 1 answer
2. asked by Acrabatisca
3. 1,247 views
Let R be the region bounded by the graphs of y=cos((pi x)/2) and y=x^2-(26/5)x+1.A. Find the area of R. B. The vertical line x=k
1. 2 answers
2. asked by Jess
3. 1,228 views
Mr. Hemley stands next to the Illinois Centennial Monument at Logan Square in Chicago and casts a shadow that is 18 feet long.
1. 3 answers
2. asked by Kya
3. 1,184 views
3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. Thatis why climbers always bring oxygen tanks. If a
1. 1 answer
2. asked by alex
3. 1,166 views
Serena has a square-shaped garden. She wants to put a fence around the outside of the garden. One side of the garden is 8 feet
1. 2 answers
2. asked by Charles
3. 1,139 views
How do you make this sentence better? "It makes me feel like it is my second home with my teachers who are like a parent and
1. 1 answer
2. asked by Anonymous
3. 1,137 views
You randomly draw a marble from a bag of 320 marbles. You record its color and replace it. Use the results shown in the table to
1. 1 answer
2. asked by Diana
3. 1,137 views
Write the ratio(18/30)as a fraction in simplest form.
1. 1 answer
2. asked by taylor pete
3. 1,125 views
I am having trouble solving this problem:"Find where the tangent line is horizontal for r=1+cos(theta)" I would really
1. 1 answer
2. asked by Anonymous
3. 1,094 views
Calculate the molarity of Formic acid in a solution containing 44g of Formica acid in 470 g of nitrobenzene. The molar mass of
1. 1 answer
2. asked by Noga
3. 1,086 views
There are 9 tennis balls in a box, of which only 5 have not previouslybeen used. Four of the balls are randomly chosen from the
1. 0 answers
2. asked by osman
3. 1,078 views
Ich schminke mich lieber als er sich.is this incorrect or correct?
1. 3 answers
2. asked by d
3. 1,050 views
Taxation without representationFor sugar act 1764 , stamp act 1765 and Townsend act 1767
1. 2 answers
2. asked by Anonymous
3. 1,041 views
1. Why is mining important to the economy of the United States?It employs many workers. Gold is expensive. Minerals are shipped
1. 1 answer
2. asked by Brooke J.
3. 1,028 views
solve for x in the interval [0,2π):3csc^2(5x)=-4
1. 1 answer
2. asked by Annie
3. 1,021 views
Suppose we have two qubits in the state (a|0⟩+b|1⟩)|0⟩, to which we apply the following circuit.(a) Is the resulting state
1. 1 answer
2. asked by s
3. 1,007 views
At 0*C a 1.0-L flask contains 5.0 x 10^-2 mol N2, 1.5 x 10^2 mg O2, and 5.0 x 10^21 molecules of NH3. What is the partial
1. 1 answer
2. asked by Brittany
3. 1,007 views
What can we say about the future evolution of irregular clusters?They will become less centrally concentrated and assume a
1. 1 answer
2. asked by C
3. 993 views
I have two questions 1.) 2750 grams= lbs2.)2km= yards and in my book I have a completely different answer. Thank you
1. 3 answers
2. asked by Kathy
3. 988 views
Two point charges totaling 9.00 µC exert a repulsive force of 0.300 N on one another when separated by 0.596 m. (A) What is the
1. 0 answers
2. asked by Justin
3. 975 views
What gave Andrew Jackson the power to remove the Cherokee from their land?Georgia state laws Acts of Congress two Supreme Court
1. 1 answer
2. asked by Max
3. 954 views
Why don't we use the bomb calorimeter to calculate the heat energy in the combustion of alcohol but we use the copper cup
1. 0 answers
2. asked by chirikamo
3. 946 views
Find the derivative of the function f by using the rules of differentiation.f(x) = x^4 - 4x^2 + 3 f '(x) =??
1. 1 answer
2. asked by Ashton
3. 939 views
blue-green light has a frequency of about 6X10 to the fourth Hz. use the relationship c=fl to find the wavelength of this light
1. 1 answer
2. asked by yusoph
3. 934 views
Which is greater 6.13 or 5.99
1. 2 answers
2. asked by Anonymous
3. 928 views
In moving out of a dormitory at the end of the sememster, a student does 1.8 104 J of work. In the process, his internal energy
1. 0 answers
2. asked by Anonymous
3. 915 views
Suppose that you wish to fabricate a uniform wire out of 1 g of copper. (Resistivity = 1.72*10^-8 Ohm-m, density =
1. 0 answers
2. asked by John
3. 907 views
What's the poetic device for this poem? this is only the other half of the poem cause I've already found the first stanza's
1. 4 answers
2. asked by Cannie
3. 905 views
Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according toBaO2(s)+H2SO4(aq)=BaSO4(s)+H
1. 2 answers
2. asked by Bob
3. 895 views
Find the maximum value of y/x over all real numbers x and y that satisfy (x-3)^2+(y-3)^2 = 6.It is a circle, but how do we even
1. 2 answers
2. asked by Knights
3. 888 views
Which of the following is true about an object that floats in water? (1 point)The object is less dense than frozen water. The
1. 2 answers
2. asked by kristin
3. 888 views
A Works Cited is a list of sources used in your research; a bibliography is a list of sources referenced during your research.�
1. 1 answer
2. asked by Danii
3. 887 views
A tin is a right circular cylinder with a diameter of 6 meters and a height of 10 meters. What is the surface area of this tin,
1. 2 answers
2. asked by XAVIER
3. 883 views
Find the greatest possible error of the measurement.7 3/16 inches I don't understand this at all.
1. 1 answer
2. asked by tmouery
3. 819 views
For a certain change, value of Delta U is -2.37 kJ. During the change, the system absorbs 650 joules. How much work did the
1. 1 answer
2. asked by Mary
3. 817 views
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet and the length of the ladder
1. 2 answers
2. asked by Jack
3. 816 views
A 115 g piece of metal, initially at 60.0 °C, is submerged into 100.0 g of water at 25.0 °C. At thermal equilibrium, this
1. 3 answers
2. asked by Brandi
3. 807 views
A 0.4kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.3 m on a frictionless horizontal
1. 1 answer
2. asked by Derrick
3. 792 views
Explain how Western Europe's physical geography affects its climate, settlement patterns, culture, and economy
1. 4 answers
2. asked by Anonymous
3. 791 views
there were 6 purple socks and 4 orange socks in a drawer. Zucky picked one sock without looking(or replacing the first). What is
1. 2 answers
2. asked by peasl
3. 779 views
Solve.x/9-1/7=26/63 STEP 1: The LCM is _________ To clear denominators, multiply each side of the equation by the LCM. _______/1
1. 1 answer
2. asked by sally
3. 777 views
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 4.0 m, The
1. 0 answers
2. asked by Derrick
3. 772 views
the experimental probability that a kicker will make a field goal is 90%. What is the Probability that the kicker will make his
1. 2 answers
2. asked by Anonymous
3. 764 views
Elbert wants to plant grass seed in his backyard. His yard is shaped like a rectangle that is 6 meters by 7 meters. He plans to
1. 1 answer
2. asked by Charles
3. 758 views
"Household size" is defined as the number of people living in a household. In a sample of 1200 households in California in 2010,
1. 1 answer
2. asked by A
3. 748 views
Which statement is FALSE?A. If the U.S. can produce rice more efficiently than Japan can, the U.S. enjoys an absolute advantage.
1. 1 answer
2. asked by LCK
3. 730 views

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